CN109812250A - A kind of method of horizontal well open hole packer staged fracturing - Google Patents
A kind of method of horizontal well open hole packer staged fracturing Download PDFInfo
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- CN109812250A CN109812250A CN201711166392.9A CN201711166392A CN109812250A CN 109812250 A CN109812250 A CN 109812250A CN 201711166392 A CN201711166392 A CN 201711166392A CN 109812250 A CN109812250 A CN 109812250A
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- sliding sleeve
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Abstract
The present invention relates to horizontal well field, a kind of method for relating to horizontal well open hole packer staged fracturing, comprising the following steps: one, pit shaft preparation；Two, pressure difference sliding sleeve, open hole packer, fracturing sliding bush, hanging packer lower tool: are sent into insertion tube is returned by horizontal segment design position using drilling rod；When tripping in tool, increase impacting type sliding sleeve between two packers；Three, pitching is setting gives up；Four, tieback；Five, pressing crack construction: putting into the pressure break ball to match from small to large with fracturing sliding bush ball seat respectively, and when pressure break ball is sent to impacting type sliding sleeve, pin pitching sliding sleeve pin opens the spray-hole of impacting type sliding sleeve；Setting ball passes through the ball seat of impacting type sliding sleeve, runs down, and when operation to common fracturing sliding bush ball seat, cuts pin under pressure, fracturing sliding bush is opened, carry out this section of pressing crack construction.The present invention can more expose reservoir, increase drainage area, and optimizing fractional pressure break series improves recovery ratio.
Description
Technical field
The present invention relates to horizontal well fields, and in particular to a kind of method of horizontal well open hole packer staged fracturing.
Background technique
Now with going deep into for Su Lige gas reservoir development, popularization and application technology, horizontal well point are become using horizontal well development
The number of segment of section pressure break is more, and Single Gas Well yield is higher.Horizontal well fracturing is carried forward vigorously, it be from general pressure break to volume
Pressure break transformation is laid equal stress on transformation from simple raising yield to improving yield and improve recovery ratio.Dispose long horizontal sections (generally higher than
1000m) horizontal well is one of effective means, and conventional naked eye separator staged fracturing technology must increase to increase segments
The number of tools such as well packer, sliding sleeve are added, increase the operating risk of tool tripping in and pressing crack construction.For long horizontal sections water
Horizontal well is by using " being segmented more clusters " pressure break mode, in the case where the whole segments of long horizontal sections can increase, increases single hop
Interior transformation degree improves well yield with multiple cracking is formed in section, increases drainage area, realizes that reservoir is sufficiently transformed.
Summary of the invention
To solve certain or certain defects in the prior art, the present invention provides a kind of segmentations of horizontal well open hole packer
The method of pressure break.
A kind of method of horizontal well open hole packer staged fracturing according to the present invention, comprising the following steps:
Step 1: pit shaft prepares: taking logical protective casing, scrape protective casing, logical horizontal segment to ensure hanging packer, naked
Eye packer set and fracturing sliding bush smoothly enter well；
Step 2: lower tool: by pressure difference sliding sleeve, open hole packer, fracturing sliding bush, hanging packer and being returned slotting using drilling rod
Cylinder is sent into horizontal segment design position；When tripping in tool, increase impacting type sliding sleeve between two packers；
Give up step 3: pitching is setting: setting open hole packer, hanging packer at various pressures are completed to give up；
Step 4: tieback: after drilling rod is given up, then tripping in returns intubation column tieback to time insertion tube, seat well head, the complete well of pressure testing；
Step 5: pressing crack construction: the pressure break ball to match from small to large with fracturing sliding bush ball seat is put into respectively, when pressure break ball
When being sent to impacting type sliding sleeve, pin pitching sliding sleeve pin opens the spray-hole of impacting type sliding sleeve；Setting ball is sliding by impacting type
The ball seat of set, runs down, and when operation to common fracturing sliding bush ball seat, pin is cut under pressure, by fracturing sliding bush
It opens, carries out this section of pressing crack construction.
Preferably, the open flow drain that drives a well to return on pressure break ball, the bypass of shock sliding sleeve after pressing crack construction
Hole is opened, and the outside of sliding sleeve and the frac-pack hole of sliding sleeve are linked up, realize full well section gas flow channels.Therefore it need not bore and remove
Ball seat will not influence well capacity after pressure break.
The present invention is with the main distinction in the prior art: in second step, increase step: two packers it
Between increase tripping in impacting type sliding sleeve, in the 5th step, increase step: one pressure break ball of investment, when pressure break ball is sent to shock
When formula sliding sleeve, pin pitching sliding sleeve pin opens the spray-hole of impacting type sliding sleeve；Setting ball passes through the ball seat of impacting type sliding sleeve,
It runs down, when operation to common fracturing sliding bush ball seat, cuts pin under pressure, fracturing sliding bush is opened, carry out
This section of pressing crack construction.This makes: (1) ball once opens multiple sliding sleeves, reduces open hole packer and uses number, reduces segmentation
Improvement cost；(2) the sliding sleeve concurrent fracturing in every group reduces the segmentation sum of series pressing crack construction time, realizes the mesh of uniform cloth liquid
's；(3) without boring abrading-ball seat, can the direct row of returning, improve drain timeliness；(4) reservoir is more exposed, aerial drainage face is increased
Product, optimizing fractional pressure break series improve recovery ratio.
Application effect: Soviet Union's 10 section of 16 cluster staged fracturing of 6-18-4H2 well point adds up to add 740 side of sand, practical working fluid amount
7935.3 sides test 65.6592 × 104m3/d of absolute open flow (AOF), by 5 4500 × 104m3 of month to date gas production in 2016.
6-18-4H1 well of reviving divides 8 section of 13 cluster staged fracturing, adds up plus 558 side of sand, practical 6303.4 side of working fluid amount, test are absolutely without hindrance
44.3850 × 104m3/d of flow reaches 3400 × 104m3 by 5 month to date gas production in 2016.Two mouthfuls of well accumulations
Better than average level, preferable implementation result is obtained.
Detailed description of the invention
Fig. 1 is impacting type shift sleeve structure schematic diagram；
Fig. 2 is pressue-graph when the 9th section of sliding sleeve is opened.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.It should be understood that
, embodiment be only to the present invention explain and and it is non-limiting.
Embodiment 1
A kind of method for present embodiments providing horizontal well open hole packer staged fracturing, comprising the following steps:
Step 1: pit shaft prepares: taking logical protective casing, scrape protective casing, logical horizontal segment to ensure hanging packer, naked
Eye packer set and fracturing sliding bush smoothly enter well；
Step 2: lower tool: by pressure difference sliding sleeve, open hole packer, fracturing sliding bush, hanging packer and being returned slotting using drilling rod
Cylinder is sent into horizontal segment design position；When tripping in tool, increase impacting type sliding sleeve between two packers；
Give up step 3: pitching is setting: setting open hole packer, hanging packer at various pressures are completed to give up；
Step 4: tieback: after drilling rod is given up, then tripping in returns intubation column tieback to time insertion tube, seat well head, the complete well of pressure testing；
Step 5: pressing crack construction: the pressure break ball to match from small to large with fracturing sliding bush ball seat is put into respectively, when pressure break ball
When being sent to impacting type sliding sleeve, pin pitching sliding sleeve pin opens the spray-hole of impacting type sliding sleeve；Setting ball is sliding by impacting type
The ball seat of set, runs down, and when operation to common fracturing sliding bush ball seat, pin is cut under pressure, by fracturing sliding bush
It opens, carries out this section of pressing crack construction.
In the present embodiment, after pressing crack construction, the open flow drain that drives a well to return on pressure break ball, the side of shock sliding sleeve
Through-hole is opened, and the outside of sliding sleeve and the frac-pack hole of sliding sleeve are linked up, realize full well section gas flow channels, as shown in Figure 1.
2 mouthfuls of impacting type sliding sleeve field tests are carried out in Soviet Union's Sulige gas field, work progress is smooth, and it is bright that double sliding sleeves open sign
It is aobvious.Horizontal well open hole packer impacting type sliding sleeve staged fracturing reforming technology technology is introduced by taking 6-18-4H2 well of reviving as an example below.
The well be Su Lige revive 6 blocks 1 mouthful of ancient times well, 5016 meters of finishing drilling well depth, 1502 meters of horizontal segment length, sandstone Drilling ratio
96.7%, effective reservoir Drilling ratio 73.4% is that a bite geology shows preferable long horizontal sections horizontal well, preferably uses impacting type sliding
Set carries out being segmented more cluster formula pressure breaks.
Surveyed according to the gas well gas, be drilled well, electrical data analysis, select entire horizontal segment physical property relatively preferably, have it is opposite
Continuous gas-bearing formation section, effectively improves transformation depth, sufficiently excavates the preferable yield potential of physical property.Optimization design is 10 sections of partial pressure,
It wherein uses impacting type sliding sleeve for the 2nd, 3,4,8,9,10 section, fracturing reform is finally carried out with 10 section of 16 cluster.
Impacting type sliding sleeve opening pressure is obvious, for the 9th section, obtains pressue-graph when the 9th section of sliding sleeve is opened, such as
It shown in Fig. 2, can be seen from the chart, first peak value is impacting type sliding sleeve pin cleavage reaction, and second peak value is conventional pressure
Split sliding sleeve pin cleavage reaction.It proves that sliding sleeve is opened according to design requirement, realizes double section concurrent fracturings in section.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (2)
1. a kind of method of horizontal well open hole packer staged fracturing, which comprises the following steps:
Step 1: pit shaft prepares: taking logical protective casing, scrape protective casing, logical horizontal segment to ensure hanging packer, naked eye envelope
Every device is setting and fracturing sliding bush smoothly enters well；
Step 2: lower tool: being sent pressure difference sliding sleeve, open hole packer, fracturing sliding bush, hanging packer with insertion tube is returned using drilling rod
Enter horizontal segment design position；When tripping in tool, increase impacting type sliding sleeve between two packers；
Give up step 3: pitching is setting: setting open hole packer, hanging packer at various pressures are completed to give up；
Step 4: tieback: after drilling rod is given up, then tripping in returns intubation column tieback to time insertion tube, seat well head, the complete well of pressure testing；
Step 5: pressing crack construction: the pressure break ball to match from small to large with fracturing sliding bush ball seat is put into respectively, when pressure break ball is sent
When to impacting type sliding sleeve, pin pitching sliding sleeve pin opens the spray-hole of impacting type sliding sleeve；Setting ball passes through impacting type sliding sleeve
Ball seat is run down, and when operation to common fracturing sliding bush ball seat, cuts pin under pressure, fracturing sliding bush is opened,
Carry out this section of pressing crack construction.
2. the method for horizontal well open hole packer staged fracturing according to claim 1, which is characterized in that work as pressing crack construction
After, the open flow drain that drives a well to return on pressure break ball, the by-pass prot of shock sliding sleeve is opened, by the outside of sliding sleeve and sliding sleeve
Frac-pack hole is linked up, and realizes full well section gas flow channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166392.9A CN109812250A (en) | 2017-11-21 | 2017-11-21 | A kind of method of horizontal well open hole packer staged fracturing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711166392.9A CN109812250A (en) | 2017-11-21 | 2017-11-21 | A kind of method of horizontal well open hole packer staged fracturing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576215A (en) * | 2020-12-09 | 2021-03-30 | 河海大学 | Ultrasonic device for oil shale staged hydraulic fracturing and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979495A (en) * | 2012-12-28 | 2013-03-20 | 中国石油集团渤海钻探工程有限公司 | Multi-cluster current limiting fracturing string of open hole horizontal well and fracturing method thereof |
| CN103015955A (en) * | 2012-12-28 | 2013-04-03 | 中国石油集团渤海钻探工程有限公司 | Open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and fracturing method thereof |
| CN103696749A (en) * | 2013-10-25 | 2014-04-02 | 陕西高新能源发展有限公司 | Closable fracture sliding sleeve |
| CN205189821U (en) * | 2015-10-30 | 2016-04-27 | 中石化石油工程技术服务有限公司 | Many bunches of unlimited level well cementation segmentation fracturing string |
| CN105937389A (en) * | 2016-06-08 | 2016-09-14 | 中国石油天然气股份有限公司 | Horizontal well cementation segmented multi-cluster volume fracturing technology |
| CN106640014A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Counting type infinite class multi cluster full path sectional fracturing slip sleeve |
| WO2017192152A1 (en) * | 2016-05-06 | 2017-11-09 | Halliburton Energy Services, Inc. | Fracturing assembly with clean out tubular string |
-
2017
- 2017-11-21 CN CN201711166392.9A patent/CN109812250A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979495A (en) * | 2012-12-28 | 2013-03-20 | 中国石油集团渤海钻探工程有限公司 | Multi-cluster current limiting fracturing string of open hole horizontal well and fracturing method thereof |
| CN103015955A (en) * | 2012-12-28 | 2013-04-03 | 中国石油集团渤海钻探工程有限公司 | Open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and fracturing method thereof |
| CN103696749A (en) * | 2013-10-25 | 2014-04-02 | 陕西高新能源发展有限公司 | Closable fracture sliding sleeve |
| CN205189821U (en) * | 2015-10-30 | 2016-04-27 | 中石化石油工程技术服务有限公司 | Many bunches of unlimited level well cementation segmentation fracturing string |
| CN106640014A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Counting type infinite class multi cluster full path sectional fracturing slip sleeve |
| WO2017192152A1 (en) * | 2016-05-06 | 2017-11-09 | Halliburton Energy Services, Inc. | Fracturing assembly with clean out tubular string |
| CN105937389A (en) * | 2016-06-08 | 2016-09-14 | 中国石油天然气股份有限公司 | Horizontal well cementation segmented multi-cluster volume fracturing technology |
Non-Patent Citations (2)
| Title |
|---|
| 戴文潮 等: "一球多簇分段压裂滑套工具技术研究", 《石油机械》 * |
| 秦金立 等: "鄂尔多斯盆地水平井多级滑套分段压裂技术", 《石油钻探技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576215A (en) * | 2020-12-09 | 2021-03-30 | 河海大学 | Ultrasonic device for oil shale staged hydraulic fracturing and construction method |
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